SINAMICS G120 Control Units CU240B-2/CU240E-2
List Manual (LH11), 01/2016, A5E33839529
807
4 Faults and alarms
4.2 List of faults and alarms
C01701 SI Motion P1 (CU): STOP B initiated
Message class: Safety monitoring channel has identified an error (10)
Reaction: NONE (OFF3)
Acknowledge: IMMEDIATELY (POWER ON)
Cause: The drive is stopped via a STOP B (braking along the OFF3 deceleration ramp).
As a result of this fault, after the speed threshold parameterized in p9560 is fallen below, message C01700 "STOP A
initiated" is output.
Possible causes:
- stop request from processor 2.
- Subsequent response to the message C01714 "SI Motion P1: Safely Limited Speed exceeded".
- subsequent response to the message C01711 "SI Motion P1: Defect in a monitoring channel".
- subsequent response to the message C01707 "SI Motion P1: tolerance for safe operating stop exceeded".
Remedy: - remove the cause of the fault on the monitoring channel of processor 2.
- carry out a diagnostics routine for message C01714.
- carry out a diagnostics routine for message C01711.
- carry out a diagnostics routine for message C01707.
This message can be acknowledged without a POWER ON using "Acknowledge internal event".
C01706 SI Motion P1 (CU): SAM/SBR limit exceeded
Message class: Safety monitoring channel has identified an error (10)
Reaction: NONE
Acknowledge: IMMEDIATELY (POWER ON)
Cause: Motion monitoring functions with set acceleration monitoring (SAM, p9506 = 3):
- after initiating STOP B (SS1) the velocity has exceeded the selected tolerance.
Motion monitoring functions with set brake ramp monitoring (SBR, p9506 = 1):
- after initiating STOP B (SS1) or SLS changeover to the lower speed stage, the speed has exceeded the selected
tolerance.
The drive is shut down by the message C01700 "SI Motion: STOP A initiated".
Remedy: Check the braking behavior and, if necessary, adapt the parameterization of the parameter settings of the "SAM" or
the "SBR" function.
This message can be acknowledged without a POWER ON using "Acknowledge internal event".
Note:
SAM: Safe Acceleration Monitor (safe acceleration monitoring)
SBR: Safe Brake Ramp (safe brake ramp monitoring)
SI: Safety Integrated
See also: p9548, p9581, p9582, p9583
C01711 SI Motion P1 (CU): Defect in a monitoring channel
Message class: Safety monitoring channel has identified an error (10)
Reaction: NONE
Acknowledge: IMMEDIATELY (POWER ON)
Cause: When cross-comparing the two monitoring channels, the drive detected a difference between the input data or results
of the monitoring functions and initiated a STOP F. One of the monitoring functions no longer reliably functions - i.e.
safe operation is no longer possible.
If at least one monitoring function is active, then message C01701 "SI Motion: STOP B initiated" is output.
The message value that resulted in a STOP F is displayed in r9725. The message values described involve the
crosswise data comparison between processor 1 and processor 2.
The following message values may also occur in the following cases if the cause that is explicitly mentioned does not
apply:
- synchronization error between processor 1 and processor 2.
Message value (r2124, interpret decimal):
0 to 999: Number of the cross-compared data that resulted in this fault.
0: Stop request from the other monitoring channel.
1: Status image of monitoring functions SLS or SAM/SBR (result list 1) (r9710[0], r9710[1]).
2: Status image of monitoring function n < nx (result list 2) (r9711[0], r9711[1]).
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